Although the American Kennel Club breed standard for the English pointer states "A good pointer cannot be a bad color," that apparently doesn't include brindle. Dogs with the brindle gene can sport solid base colors with black stripes. It's a color combination found most often in greyhounds, Great Danes, boxers and bulldogs, although it can appear in other breeds.
Acceptable Pointer Colors
The AKC standard permits shades of lemon, liver, orange or black in the English pointer, either solid-colored or mixed with white. A darker pointer, such as a liver-colored dog, should have a dark nose to match. Lighter hued dogs can have nasal shades as pale as flesh-colored.